Wow, thanks a lot Aaaron !!!

This is not Array of Array, so I used second code what you have provided and it works perfectly fine. But I have few doubts:

1. In split you have specified ' ' which means it will split on single space, but in reality it splits for any number of space.

2. How can I do it using 'Schwartzian transform', I am still novice in perl, please do not mind.

3. How can I have flexibility to pass sorting order Ascending OR Descending to this subroutine. I tried as shown below but its not working. 

sub sort_lines_by_column {
  my( $array, $column, $order ) = @_;
  my $ab;
  my $cd;
if ($order eq 'asc') {$ab = "\$a"; $cd = "\$b";} elsif ($order eq 'dsc
+') {$ab = "\$b"; $cd = "\$a";};
  return sort {
    return( (split ' ', $ab)[$column] <=> (split ' ', $cd)[$column] );
  } @$array;
}

[download]

Its giving error "Use of uninitialized value in numeric comparison (<=>)"

In reply to Re^5: Sorting based on any column by Anonymous Monk
in thread Sorting based on any column by Anonymous Monk

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